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xen/pvh: Do not fill kernel's e820 map in init_pvh_bootparams()

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e820 map is updated with information from the zeropage (i.e. pvh_bootparams)
by default_machine_specific_memory_setup(). With the way things are done
now,  we end up with a duplicated e820 map.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Boris Ostrovsky 2017-04-21 11:13:14 -04:00 committed by Juergen Gross
parent 6483e3135a
commit 5f6a1614fa
1 changed files with 6 additions and 14 deletions
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20
arch/x86/xen/enlighten_pvh.c
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@ -34,7 +34,6 @@ static void xen_pvh_arch_setup(void)
static void __init init_pvh_bootparams(void)
{
struct xen_memory_map memmap;
unsigned int i;
int rc;
memset(&pvh_bootparams, 0, sizeof(pvh_bootparams));
@ -46,26 +45,19 @@ static void __init init_pvh_bootparams(void)
xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc);
BUG();
}
pvh_bootparams.e820_entries = memmap.nr_entries;
if (memmap.nr_entries < E820_MAX_ENTRIES_ZEROPAGE - 1) {
pvh_bootparams.e820_table[memmap.nr_entries].addr =
if (pvh_bootparams.e820_entries < E820_MAX_ENTRIES_ZEROPAGE - 1) {
pvh_bootparams.e820_table[pvh_bootparams.e820_entries].addr =
ISA_START_ADDRESS;
pvh_bootparams.e820_table[memmap.nr_entries].size =
pvh_bootparams.e820_table[pvh_bootparams.e820_entries].size =
ISA_END_ADDRESS - ISA_START_ADDRESS;
pvh_bootparams.e820_table[memmap.nr_entries].type =
pvh_bootparams.e820_table[pvh_bootparams.e820_entries].type =
E820_TYPE_RESERVED;
memmap.nr_entries++;
pvh_bootparams.e820_entries++;
} else
xen_raw_printk("Warning: Can fit ISA range into e820\n");
pvh_bootparams.e820_entries = memmap.nr_entries;
for (i = 0; i < pvh_bootparams.e820_entries; i++)
e820__range_add(pvh_bootparams.e820_table[i].addr,
pvh_bootparams.e820_table[i].size,
pvh_bootparams.e820_table[i].type);
e820__update_table(e820_table);
pvh_bootparams.hdr.cmd_line_ptr =
pvh_start_info.cmdline_paddr;